Bla climate — normals and trends
Bla (Mali) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 27.9 °C and it receives 661 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is April (32.4 °C on average) and the coldest is January (24.0 °C). Rainfall peaks in August.
Bla averages 0 frost days, 316 hot days (≥ 30 °C) and 95 rainy days per year.
Bla has warmed by +2.0 °C between 1940 and 2025, or +0.24 °C per decade. This trend is statistically significant.
The hottest day of the period reached 44.3 °C (on 3 April 2024) and the coldest 10.3 °C (on 7 January 1966).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
BlaSégou
- coords
- 12.95°, -5.76°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
27.9°C
Average daily high
34.1°C
Average daily low
22.4°C
Annual rainfall
661mm
Sunshine / day
10.8h
Mean relative humidity
48%
Average peak wind
13.8km/h
Seasonal range
8.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
316 d/yr
Rainy days (≥ 1 mm)
95 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.9 °C
Average feels-like low
22.7 °C
Average peak gust
31.1 km/h
Tropical nights (≥ 20 °C)
277 d/yr
Solar radiation
21.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.58 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
44.3 °C
3 April 2024
Coldest day
10.3 °C
7 January 1966
Wettest day
136 mm
30 August 1956
Windiest day
30.3 km/h
3 June 1946
Strongest gust
60.1 km/h
14 May 2002
Hottest feels-like
47.4 °C
10 May 2024
Coldest feels-like
6.5 °C
7 January 1966
Sunniest day
12.8 h
14 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 31.5 °C | -0.1 °C | 0 mm | -1 mm |
| Feb | 34.2 °C | -0.5 °C | 0 mm | -0 mm |
| Mar | 39.6 °C | +2.2 °C | 2 mm | -1 mm |
| Apr | 40.1 °C | +1.3 °C | 2 mm | -8 mm |
| May | 38.0 °C | -0.3 °C | 5 mm | -25 mm |
| Jun | 35.6 °C | +0.1 °C | 33 mm | -30 mm |
| Jul | 31.8 °C | +0.2 °C | 146 mm | -10 mm |
| Aug | 30.4 °C | +0.3 °C | 184 mm | -37 mm |
| Sep | 31.7 °C | +0.6 °C | 134 mm | -3 mm |
| Oct | 35.7 °C | +1.7 °C | 17 mm | -22 mm |
| Nov | 36.2 °C | +1.5 °C | 0 mm | -1 mm |
| Dec | 32.2 °C | +0.4 °C | 7 mm | +6 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Bla?
Bla has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 27.9 °C and it receives 661 mm of precipitation per year.
What is the hottest day ever recorded in Bla?
The hottest day measured in Bla between 1940 and 2025 was 3 April 2024, reaching 44.3 °C.
What is the coldest day in Bla?
The coldest day measured in Bla between 1940 and 2025 was 7 January 1966, at 10.3 °C.
Does it snow in Bla?
Almost never: Bla sees virtually no snow, with about 0 frost days per year.
Has the climate of Bla warmed?
Yes: Bla warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bla?
The wettest day measured in Bla between 1940 and 2025 was 30 August 1956, with 136 mm of rain in 24 hours.
What was the windiest day in Bla?
The windiest day measured in Bla between 1940 and 2025 was 3 June 1946, with winds reaching 30.3 km/h.
What is the warmest month in Bla?
The warmest month in Bla is April (32.4 °C on average); the coldest is January (24.0 °C).
How much does it rain in Bla?
Bla receives on average 661 mm of precipitation per year, spread over about 95 rainy days.
Is it sunny in Bla?
Bla gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in Bla?
Yes: Bla has on average 277 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bla?
In Bla, between 1940 and 2025, the highest apparent temperature reached 47.4 °C on 10 May 2024, and the lowest was 6.5 °C on 7 January 1966.
Compare Bla with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bla